Super Systems 7EK 31080 - Manual (Page 25)

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HyS Hysteresis for ON/OFF control action
Available only when Pb=0.
Range: from 0.1% to 10.0% of the input span.
ti Integral time
This parameter is skipped if Pb=0 (ON/OFF
action).
Range: from 00.01 to 20.00 [mm.ss]. Above
this value the display blanks and integral action
is excluded
Note: When the device is working with SMART
algorithm, the minimum value of the integral
time will be limited by P36 parameter.
td Derivative time
This parameter is skipped if Pb=0 (ON/OFF
action) or P44 = Pi.
Range: From 00.00 to 10.00 mm.ss.
Note: When device is working with SMART
algorithm the td value will be equal to a quarter
of Ti value.
IP Integral pre-load.
This parameter is skipped if Pb=0 (ON/OFF
action).
- For one control output, it is program-
mable from 0 to 100 % of the output
span.
- For two control outputs it is program-
mable from -100% (100 % cooling) to
100 % (100 % heating)
Cy1 Output 1 cycle time
Range: From 1 to 200 s.
Cy2 Output 2 cycle time
Available only if P7 is equal to 4.
Range: From 1 to 200 s.
rC Relative Cooling gain.
This parameter is skipped if Pb=0 (ON/OFF
action) or P7 different from 4.
Range: from 0.20 to 1.00
Note: When the device is working with SMART
algorithm and P32 is set to ON the rC value is
limited in accordance with the selected type of
cooling media:
- from 0.85 to 1.00 when P8 = AIr
- from 0.80 to 0.90 when P8 = OIL
- from 0.30 to 0.60 when P8 = H2O
OLAP Dead band/Overlap between H/C
outputs.
This parameter is skipped if Pb=0 (ON/OFF
action) or P7 different from 4.
Range: from -20 to 50 % of the proportional band.
A negative OLAP value shows a dead band
while a positive value shows an overlap.
rL Set point low limit
Range: from min. range value (P3) to rH.
Notes:
1) When P3 has been modified, rL will be
realigned to it
2) if rL has been modified and the SP (or SP2)
value is lower than the new rL value, the SP
(or SP2) value will be realigned to it.
rH Set point high limit
Range: From rL to full scale value (P4)
Notes:
1) When P4 has been modified, rH will be
realigned to it
2) if rH has been modified and the SP (or SP2)
value is higher than the new rH value, the
SP (or SP2) value will be realigned to it.
Grd1 Ramp applied to an increasing set point
change
Range: from 1 to 100 digits per minutes.
Above this value the display shows “Inf”
meaning that the transfer will be done as a step
change.
Grd2 Ramp applied to a decreasing set point
changes
For other details see Grd1 parameter.
OLH Output high limit
Range:
- From 0 to 100 % when device is configured
with one control output.
- From -100 to 100% when device is configured
with two control outputs.
tOL Time duration of the output power limiter
(Soft start)
Range: from 1 to 540 min. Above this value the
display shows “InF” meaning that the limiting
action is always on
Note: The tOL can be modified but the new
value will become operative only at the next
instrument start up.
31080-1-00.p65 3/24/00, 11:58 AM 21